Materials Data on TmSi3Rh5 by Materials Project

Abstract

TmRh5Si3 crystallizes in the hexagonal P6_3/m space group. The structure is three-dimensional. Tm is bonded in a 12-coordinate geometry to six Rh and six Si atoms. There are a spread of Tm–Rh bond distances ranging from 3.05–3.12 Å. There are a spread of Tm–Si bond distances ranging from 3.05–3.09 Å. There are five inequivalent Rh sites. In the first Rh site, Rh is bonded in a distorted trigonal non-coplanar geometry to three equivalent Si atoms. There are one shorter (2.34 Å) and two longer (2.50 Å) Rh–Si bond lengths. In the second Rh site, Rh is bonded in a 4-coordinate geometry to two equivalent Tm and four Si atoms. There are a spread of Rh–Si bond distances ranging from 2.38–2.48 Å. In the third Rh site, Rh is bonded in a 4-coordinate geometry to two equivalent Tm and four Si atoms. There are a spread of Rh–Si bond distances ranging from 2.39–2.49 Å. In the fourth Rh site, Rh is bonded in a 4-coordinate geometry to two equivalent Tm and four Si atoms. There are a spread of Rh–Si bond distances ranging from 2.40–2.51 Å. In the fifth Rh site, Rh is bonded in a 5-coordinate geometry to five Si atoms. There are a spread of Rh–Si bond distances ranging from 2.37–2.52 Å. There are three inequivalent Si sites. In the first Si site, Si is bonded in a 10-coordinate geometry to two equivalent Tm and six Rh atoms. In the second Si site, Si is bonded in a 9-coordinate geometry to two equivalent Tm and seven Rh atoms. In the third Si site, Si is bonded in a 9-coordinate geometry to two equivalent Tm and seven Rh atoms.